Bug 490367

Summary: Offset of 2 Hours with the GPS tracks correlator from geolocation editor
Product: [Applications] digikam Reporter: Ette <Elmarkusch>
Component: Geolocation-CorrelatorAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: metzpinguin
Priority: NOR    
Version: 8.4.0   
Target Milestone: ---   
Platform: macOS (DMG)   
OS: macOS   
Latest Commit: Version Fixed In: 8.5.0
Sentry Crash Report:
Attachments: Left Side GPX Editor-right Digikam (look at the Offset)
The gpx file

Description Ette 2024-07-16 17:47:58 UTC
Created attachment 171709 [details]
Left Side GPX Editor-right Digikam (look at the Offset)

1. Select a Photo
2. Open the Geolocation Editor 
3. Open the GPX-File (recorded with "GPX Tracker" on the iPhone)
4. correlate

OBSERVED RESULT
Wrong Position of the Picture

5. Adding 2 Hours (Camera-Timezone)
Correct Position of the Picture

macOS: 12.07.04
Comment 1 Maik Qualmann 2024-07-16 17:56:44 UTC
GPS is UTC time, so London. Your position is +1 hour in Germany, + 1 hour summer time = +2 hours.

Maik
Comment 2 Maik Qualmann 2024-07-16 19:00:44 UTC
I assume that the GPX file viewer already converts the date to local time. Can you make the GPX file available, if not public, to my email address?

Maik
Comment 3 Ette 2024-07-16 19:17:56 UTC
Created attachment 171711 [details]
The gpx file
Comment 4 Maik Qualmann 2024-07-16 19:39:00 UTC
This is the corresponding entry in the GPX file. It was 15:18:09 UTC time. So the 2 hours are correct.

<trkpt lat="53.4999383379161" lon="7.047055905940331">
    <ele>5.4458167143166065</ele>
        <time>2024-06-15T15:18:09Z</time>

Maik